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The ________ master will register its own address in this znode at startup, making this znode the source of truth for identifying which server is the Master.

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The ________ master will register its own address in this znode at startup, making this znode the source of truth for identifying which server is the Master.

(a) active

(b) passive

(c) region

(d) all of the mentioned

The question was asked by my college director while I was bunking the class.

This intriguing question originated from The ZooKeeper Service topic in portion ZooKeeper, Sqoop and Cassandra of Hadoop

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Right option is (a) active

The best I can explain: Each inactive Master will register itself as backup Master by creating a sub-znode.

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